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Copper Practical Introduction In this practical I will be making copper. Copper is extracted by reduction although for many purposes such as electrical wiring, copper is required in a high state of purity. For this purpose, copper is purified by electrolysis. Purification of copper by electrolysis consists of an anode made of an impure copper plate and a cathode made of a pure copper plate. The electrolyte is copper (II) sulphate solution. All of the impurities that were in the impure copper plate are collected at the bottom of the cell and are known as 'anode mud'. This can also be refined to produce precious metals such as silver, gold and platinum. Materials Bunsen burner Malachite powder (copper carbonate) Carbon powder Heat proof mat Weighing scales Beaker Test tube Filter paper Cold water Spatula Test tube rack Scrap paper (for using as a surface when weighing the malachite powder) Risk Assessment Risk Danger Precaution Action Malachite powder(copper carbonate) Harmful if swallowed. Powder and dust irritates lung and eyes Handle carefully making sure no...

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